We need to make them feel good about themselves.
My daughter is in second grade and her school has installed a graduated curriculum that is based upon each child's ability to learn because basically every kid should feel good about themselves. They use a different term, but that's the basis of it.
For example, in my daughter's class, some kids are only given 5 spelling words per week, the majority of them are given 10 words and a select few such as my daughter are given 10 words plus 5 challenge words.
Now to me, I view it as my daughter is a smart little cookie who needs the extra work to keep her from becoming bored, but to a 7 year, she sees her best bud only doing 5 words while she has 15, so that means she is being punished. I explained it to her, but it was hard for a child not to view it the way that she did. And that bothered me.
I'm sure an educator will tell me the virtues of this sort of teaching, but I feel that all kids in a certain grade should be taught and judged by the same work.